Much larger filesize compared to the command line

[peterdongan]

920px.jpg is 281k

command line:

magick convert 1920px.jpg -resize 720x720 -quality 80 im2.jpg

results in a 40k file, which is ideal for my purposes.

Magick.Net with the same size and quality values:

    using (var image = new MagickImage(sImage))
    {
        var size = new MagickGeometry(maxWidth, maxHeight);
        size.Less = false;
        image.Quality = quality;
        image.Resize(size);

        return image.ToByteArray();
    }

results in a 224k file, which is too big for my purposes.

I would have thought the result should be the same? Am I doing something wrong?

[dlemstra]

Can you share your input image? And why are you setting size.Less?

[peterdongan]

I'm setting size.Less because I only want to shrink images, not enlarge them.

[dlemstra]

The size of image.ToByteArray().Length is 40211 when I test this with the latest version of Magick.NET. Don't know why you are getting a different result. And you will need to size.Less to true if you want to enable that option.

[peterdongan]

Thank you for your help and quick responses. I see now that I had tested it with the .png version of the same image by mistake.